So far, the familiar instant messaging conversation can only be used by one device, given its connection to the phone number. However, WhatsApp has already announced that it is soon breaking the connection between phone numbers and user accounts, incorporating the use of QR codes.
Anas, other application developers, started ZapClone, a simple application, currently only available for Android, which allows you to use WhatsApp profile from two different devices, mimicking WhatsApp Web session.
For now, the ZapClone application is only available for Android.
To use this app, it's only necessary that both devices be handy, downloaded through Google Play, and installed on a secondary device. Once this is done, you need to create an account in the application, and then give us a QR code that we will find in the configuration area, and finally we will need to scan from the main unit.
Source: Mundo Deportivo